/*
 * MinIO Cloud Storage (C) 2018 MinIO, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import React from "react";
import { connect } from "react-redux"
import { createStyles, makeStyles, withStyles, Theme } from '@material-ui/core/styles';
import FormControl from '@material-ui/core/FormControl';
import InputLabel from '@material-ui/core/InputLabel';
import MenuItem from '@material-ui/core/MenuItem';
import Select from '@material-ui/core/Select';
import InputBase from '@material-ui/core/InputBase';
import ReactEcharts from 'echarts-for-react';
import * as echarts from 'echarts';
import Alert from '@material-ui/lab/Alert';
import IconButton from '@material-ui/core/IconButton';
import Collapse from '@material-ui/core/Collapse';
import CloseIcon from '@material-ui/icons/Close';
import api from "../../../common/api";
import { ChartUrl, timeConvert, beforeNowtimeByMinu } from "./types";

const BootstrapInput = withStyles((theme: Theme) =>
  createStyles({
    root: {
      'label + &': {
        marginTop: 0,
        marginLeft: theme.spacing(4),
      },
    },
    input: {
      borderRadius: 4,
      position: 'relative',
      backgroundColor: theme.palette.background.paper,
      border: '1px solid #ced4da',
      fontSize: 14,
      padding: '5px 26px 5px 12px',
      transition: theme.transitions.create(['border-color', 'box-shadow']),
      '&:focus': {
        borderRadius: 4,
        borderColor: '#80bdff',
        boxShadow: '0 0 0 0.2rem rgba(0,123,255,.25)',
      },
    },
  }),
)(InputBase);
const styles = (theme: Theme) =>
  createStyles({
    alert: {
      position: "absolute",
      width: "100%",
      textAlign: "center",
      zIndex: 1000, 
      top: 35
    },
    alertPop: {
      margin: "0 auto",
      width: "130px"
    },
    chart: {
      height: '285px !important', 
      width: '100%', 
      marginTop: -20,
      marginBottom: -40
    },
});
interface ChartState {
  classes: any;
  inputStep: string,
}
export class ChartDisk extends React.Component<ChartState, any> {
  constructor(props:any){
    super(props);
    this.state = {
      records: [],
      xrecord:[],
      legend:[],
      recordsData:[],
      loading: false,
      step: "14",
      dataWarn:"",
      open: false
    };
  };
  setOpen(a:boolean){
    this.setState({
      open: a
    })
  }
  getChart(step:any) {
    let duration = 60;
    if(step == '1'){
      duration = 15
    }else if(step == '7'){
      duration = 30
    }else if(step == '14'){
      duration = 60
    }else if(step == '28'){
      duration = 120
    }else if(step == '86'){
      duration = 360
    }else if(step == '172'){
      duration = 720
    }else if(step == '345'){
      duration = 1440
    }
    let url2 = ChartUrl+"disk_storage_used/(1024*1024*1024)&start="+Date.parse(beforeNowtimeByMinu(duration)).toString().substring(0,10)+"&end="+Date.parse(beforeNowtimeByMinu(0)).toString().substring(0,10)+"&step="+step;
    api
      .invoke("GET", url2)
      .then((res) => {
        var rootData2 = res.data.result;
        if(rootData2 != []){
          for(var i=0;i<rootData2.length;i++){
            for(var a=0;a<rootData2[i].values.length;a++){
              // rootData2[i].values[a][1] = parseFloat((rootData2[i].values[a][1]/(1024*1024*1024)).toFixed(3));
              rootData2[i].values[a][1] = parseFloat(rootData2[i].values[a][1]);
              rootData2[0].values[a][1] += rootData2[i].values[a][1]
            }
          }
          var x = rootData2[0].values.length-1
          this.setState({
            diskUsed: parseFloat(rootData2[0].values[x][1].toFixed(2)),
          });
        }else{
          this.setState({
            dataWarn: "暂无数据",
            loading: false 
          })
          this.setOpen(true);
        }
      })
      .catch(err => {
        this.setState({
          dataWarn: "暂无数据",
          loading: false 
        })
        this.setOpen(true);
      });
    let url = ChartUrl+"disk_storage_available/(1024*1024*1024)&start="+Date.parse(beforeNowtimeByMinu(duration)).toString().substring(0,10)+"&end="+Date.parse(beforeNowtimeByMinu(0)).toString().substring(0,10)+"&step="+step;
    api
      .invoke("GET", url)
      .then((res) => {
        var rootData = res.data.result;
        if(rootData != []){
          for(var i=0;i<rootData.length;i++){
            for(var a=0;a<rootData[i].values.length;a++){
              rootData[i].values[a][1] = parseFloat(rootData[i].values[a][1]);
              rootData[0].values[a][1] += rootData[i].values[a][1]
            }
          }
          // for(var i=1;i<rootData.length;i++){
            //   for(var a=0;a<rootData[i].values.length;a++){
              //     rootData[0].values[a][1] += rootData[i].values[a][1]
              //   }
              // }
          var y = rootData[0].values.length-1
          // console.log(parseFloat(rootData[0].values[y][1].toFixed(3)))
            // var diskAvailable = rootData[0].values[y][1]
            // console.log(diskAvailable)
          this.setState({
            diskAvailable: parseFloat(rootData[0].values[y][1].toFixed(2)),
          });
        }else{
          this.setState({
            dataWarn: "暂无数据",
            loading: false 
          })
          this.setOpen(true);
        }
      })
      .catch(err => {
          this.setState({
            dataWarn: "暂无数据",
            loading: false 
          })
          this.setOpen(true);
      });
  }
  componentDidMount(): void {
    var that = this
    that.getChart(that.state.step);
  }
  componentDidUpdate(prevProps:any): void {
    if(prevProps.inputStep !== this.state.step){
        this.getChart(this.state.step);
        var timer = setInterval(() => {
          let url = window.location.href
          if(url.indexOf("/dashboard") != -1){
            this.getChart(this.state.step);
          }else{
            clearInterval(timer)
          }
        }, 25000)
    }
  }
  static getDerivedStateFromProps(nextProps:any, prevState:any) {
    // 当传入的type发生变化的时候，更新state
    if (nextProps.inputStep !== prevState.step) {
      return {
        step: nextProps.inputStep
      }
    }
    // 否则，对于state不进行任何操作
    return null;
  }
  getOption= () => ({
    tooltip: {
      trigger: 'item',
      formatter: '{a} <br/>{b} : {c}GB ({d}%)'
    },
    color: ['#91c7ae', '#5793f3'],
    legend: {
        bottom: '20',
        data: ['已用', '剩余']
    },
    series: [
        {
            name: '硬盘存储',
            type: 'pie',
            startAngle:120,
            radius: '55%',
            center: ['50%', '45%'],
            label: {
              formatter: '{b} {d}%',
            },
            data: [
                {value: this.state.diskUsed, name: '已用', selected: true},
                {value: this.state.diskAvailable, name: '剩余'},
            ]
        }
    ]
  });
  render() {
    const { classes } = this.props;
    return (
      <div style={{position: "relative"}}>
        {this.state.open ? (
        <div className={classes.alert}>
          <Collapse in={this.state.open} className={classes.alertPop}>
            <Alert severity="error" style={{padding: "0 16px"}}>
              {this.state.dataWarn}
            </Alert>
          </Collapse>
        </div>
        ):(

          <ReactEcharts
          ref="chart"
          option={this.getOption()}
          className={classes.chart}/>
          )}
      </div>
    );
  }
};
export default withStyles(styles)(ChartDisk)